<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title></title>
		<style type="text/css">
			img{
				/* width: 100px; */
				width: 50vw;   /* 宽度是窗口的50% */
			}
		</style>
	</head>
	<body>
		<img src="img/pzhu.jpg" >
	</body>
</html>
